92 lines
2.8 KiB
C++
92 lines
2.8 KiB
C++
/*
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SPDX-FileCopyrightText: 2010 Fredrik Höglund <fredrik@kde.org>
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SPDX-FileCopyrightText: 2014 Marco Martin <mart@kde.org>
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SPDX-License-Identifier: GPL-2.0-or-later
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*/
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#ifndef CONTRAST_H
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#define CONTRAST_H
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#include <kwineffects.h>
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#include <kwinglplatform.h>
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#include <kwinglutils.h>
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#include <QVector>
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#include <QVector2D>
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namespace KWaylandServer
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{
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class ContrastManagerInterface;
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}
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namespace KWin
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{
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class ContrastShader;
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class ContrastEffect : public KWin::Effect
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{
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Q_OBJECT
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public:
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ContrastEffect();
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~ContrastEffect() override;
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static bool supported();
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static bool enabledByDefault();
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static QMatrix4x4 colorMatrix(qreal contrast, qreal intensity, qreal saturation);
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void reconfigure(ReconfigureFlags flags) override;
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void prePaintScreen(ScreenPrePaintData &data, int time) override;
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void prePaintWindow(EffectWindow *w, WindowPrePaintData &data, int time) override;
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void drawWindow(EffectWindow *w, int mask, const QRegion ®ion, WindowPaintData &data) override;
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void paintEffectFrame(EffectFrame *frame, const QRegion ®ion, double opacity, double frameOpacity) override;
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bool provides(Feature feature) override;
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bool isActive() const override;
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int requestedEffectChainPosition() const override {
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return 76;
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}
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bool eventFilter(QObject *watched, QEvent *event) override;
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public Q_SLOTS:
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void slotWindowAdded(KWin::EffectWindow *w);
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void slotWindowDeleted(KWin::EffectWindow *w);
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void slotPropertyNotify(KWin::EffectWindow *w, long atom);
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void slotScreenGeometryChanged();
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private:
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QRegion contrastRegion(const EffectWindow *w) const;
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bool shouldContrast(const EffectWindow *w, int mask, const WindowPaintData &data) const;
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void updateContrastRegion(EffectWindow *w);
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void doContrast(EffectWindow *w, const QRegion &shape, const QRect &screen, const float opacity, const QMatrix4x4 &screenProjection);
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void uploadRegion(QVector2D *&map, const QRegion ®ion);
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void uploadGeometry(GLVertexBuffer *vbo, const QRegion ®ion);
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private:
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ContrastShader *shader;
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long net_wm_contrast_region;
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QRegion m_paintedArea; // actually painted area which is greater than m_damagedArea
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QRegion m_currentContrast; // keeps track of the currently contrasted area of non-caching windows(from bottom to top)
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QHash< const EffectWindow*, QMatrix4x4> m_colorMatrices;
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QHash< const EffectWindow*, QMetaObject::Connection > m_contrastChangedConnections; // used only in Wayland to keep track of effect changed
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KWaylandServer::ContrastManagerInterface *m_contrastManager = nullptr;
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};
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inline
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bool ContrastEffect::provides(Effect::Feature feature)
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{
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if (feature == Contrast) {
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return true;
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}
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return KWin::Effect::provides(feature);
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}
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} // namespace KWin
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#endif
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